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4.
Epilepsia Open ; 2024 Mar 16.
Artículo en Inglés | MEDLINE | ID: mdl-38491953

RESUMEN

OBJECTIVE: This study aims to comprehensively analyze the clinical characteristics and identify the differentially expressed genes associated with drug-resistant epilepsy (DRE) in patients with focal cortical dysplasia (FCD). METHODS: A retrospective investigation was conducted from July 2019 to June 2022, involving 40 pediatric cases of DRE linked to FCD. Subsequent follow-ups were done to assess post-surgical outcomes. Transcriptomic sequencing and quantitative reverse transcription polymerase chain reaction (qRT-PCR) were used to examine differential gene expression between the FCD and control groups. RESULTS: Among the 40 patients included in the study, focal to bilateral tonic-clonic seizures (13/40, 32.50%) and epileptic spasms (9/40, 22.50%) were the predominant seizure types. Magnetic resonance imaging (MRI) showed frequent involvement of the frontal (22/40, 55%) and temporal lobes (12/40, 30%). In cases with negative MRI results (13/13, 100%), positron emission tomography/computed tomography (PET-CT) scans revealed hypometabolic lesions. Fused MRI/PET-CT images demonstrated lesion reduction in 40.74% (11/27) of cases compared with PET-CT alone, while 59.26% (16/27) yielded results consistent with PET-CT findings. FCD type II was identified in 26 cases, and FCD type I in 13 cases. At the last follow-up, 38 patients were prescribed an average of 1.27 ± 1.05 anti-seizure medications (ASMs), with two patients discontinuing treatment. After a postoperative follow-up period of 23.50 months, 75% (30/40) of patients achieved Engel class I outcome. Transcriptomic sequencing and qRT-PCR analysis identified several genes primarily associated with cilia, including CFAP47, CFAP126, JHY, RSPH4A, and SPAG1. SIGNIFICANCE: This study highlights focal to bilateral tonic-clonic seizures as the most common seizure type in patients with DRE due to FCD. Surgical intervention primarily targeted lesions in the frontal and temporal lobes. Patients with FCD-related DRE showed a promising prognosis for seizure control post-surgery. The identified genes, including CFAP47, CFAP126, JHY, RSPH4A, and SPAG1, could serve as potential biomarkers for FCD. PLAIN LANGUAGE SUMMARY: This study aimed to comprehensively evaluate the clinical data of individuals affected by focal cortical dysplasia and analyze transcriptomic data from brain tissues. We found that focal to bilateral tonic-clonic seizures were the most prevalent seizure type in patients with drug-resistant epilepsy. In cases treated surgically, the frontal and temporal lobes were the primary sites of the lesions. Moreover, patients with focal cortical dysplasia-induced drug-resistant epilepsy exhibited a favorable prognosis for seizure control after surgery. CFAP47, CFAP126, JHY, RSPH4A, and SPAG1 have emerged as potential pathogenic genes for the development of focal cortical dysplasia.

5.
BMC Pregnancy Childbirth ; 24(1): 194, 2024 Mar 12.
Artículo en Inglés | MEDLINE | ID: mdl-38475705

RESUMEN

BACKGROUND: Prenatal diagnosis of Berry syndrome, a rare combination of cardiac anomalies including aortopulmonary window (APW), aortic origin of the right pulmonary artery (RPA), interrupted aortic arch (IAA), hypoplastic aortic arch, or coarctation of the aorta (COA), poses a significant challenge. Due to the rarity of the disease, and the limited case reports available to features the complex malformation of Berry syndrome postpartum, this article introduces an innovative approach to visually showcase this unusual disease. The proposed method provides a comprehensive display of the structural deformities, offering valuable insights for clinical practitioners seeking to comprehend this condition. CASE PRESENTATION: In this report, we present a case where fetal echocardiography aided in diagnosing Berry syndrome, which was later confirmed through postpartum cardiovascular casting. Our experience highlights the importance of using the three-vessel view to diagnose APW and aortic origin of the right pulmonary artery. Additionally, obtaining true cross-sectional and sagittal views by continuously scanning from the three-vessel-trachea view to the long-axis view of the aortic arch is necessary to image IAA or coarctation of the aortic arch. CONCLUSIONS: Early and accurate prenatal diagnosis of Berry syndrome is feasible and our cardiovascular cast can perfectly display the microvascular morphology of the fetal heart, which may have great application prospects for postpartum diagnosis and teaching of complex cardiac abnormalities.


Asunto(s)
Defecto del Tabique Aortopulmonar , Cardiopatías Congénitas , Embarazo , Femenino , Humanos , Estudios Transversales , Aorta Torácica/anomalías , Aorta/anomalías , Arteria Pulmonar
6.
Vet Microbiol ; 290: 109974, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38262115

RESUMEN

Pseudorabies virus (PRV) is a neurotropic virus, which infects a wide range of mammals. The activity of PRV is gradually suppressed in hosts that have tolerated the primary infection. Increased glucocorticoid levels resulting from stressful stimuli overcome repression of PRV activity. However, the host cell mechanism involved in the activation processes under stressful conditions remains unclear. In this study, infection of rat PC-12 pheochromocytoma cells with neuronal properties using PRV at a multiplicity of infection (MOI) = 1 for 24 h made the activity of PRV be the relatively repressed state, and then incubation with 0.5 µM of the corticosteroid dexamethasone (DEX) for 4 h overcomes the relative repression of PRV activity. RNA-seq deep sequencing and bioinformatics analyses revealed different microRNA and mRNA profiles of PC-12 cells with/without PRV and/or DEX treatment. qRT-PCR and western blot analyses confirmed the negative regulatory relationship of miRNA-194-5p and its target heparin-binding EGF-like growth factor (Hbegf); a dual-luciferase reporter assay revealed that Hbegf is directly targeted by miRNA-194-5p. Further, miRNA-194-5p mock transfection contributed to PRV activation, Hbegf was downregulated in DEX-treated PRV infection cells, and Hbegf overexpression contributed to returning activated PRV to the repression state. Moreover, miRNA-194-5p overexpression resulted in reduced levels of HBEGF, c-JUN, and p-EGFR, whereas Hbegf overexpression suppressed the reduction caused by miRNA-194-5p overexpression. Overall, this study is the first to report that changes in the miR-194-5p-HBEGF/EGFR pathway in neurons are involved in DEX-induced activation of PRV, laying a foundation for the clinical prevention of stress-induced PRV activation.


Asunto(s)
Neoplasias de las Glándulas Suprarrenales , Herpesvirus Suido 1 , MicroARNs , Feocromocitoma , Seudorrabia , Enfermedades de los Roedores , Ratas , Animales , Herpesvirus Suido 1/metabolismo , Factor de Crecimiento Similar a EGF de Unión a Heparina/metabolismo , Feocromocitoma/veterinaria , MicroARNs/genética , MicroARNs/metabolismo , Receptores ErbB/metabolismo , Neoplasias de las Glándulas Suprarrenales/veterinaria , Dexametasona/farmacología , Mamíferos
7.
Vet Res ; 54(1): 25, 2023 Mar 14.
Artículo en Inglés | MEDLINE | ID: mdl-36918933

RESUMEN

Pseudorabies virus (PRV) causes viral encephalitis, a devastating disease with high mortality worldwide. Curcumin (CUR) can reduce inflammatory damage by altering the phenotype of microglia; however, whether and how these changes mediate resistance to PRV-induced encephalitis is still unclear. In this study, BV2 cells were infected with/without PRV for 24 h and further treated with/without CUR for 24 h. The results indicated that CUR promoted the polarization of PRV-infected BV2 cells from the M1 phenotype to the M2 phenotype and reversed PRV-induced mitochondrial dysfunction. Furthermore, M1 BV2 cell secretions induced signalling pathways leading to apoptosis in PC-12 neuronal cells, and this effect was abrogated by the secretions of M2 BV2 cells. RNA sequencing and bioinformatics analysis predicted that this phenotypic shift may be due to changes in energy metabolism. Furthermore, Western blot analysis showed that CUR inhibited the increase in AMP-activated protein kinase (AMPK) phosphorylation, glycolysis, and triacylglycerol synthesis and the reduction in oxidative phosphorylation induced by PRV infection. Moreover, the ATP levels in M2 BV2 cells were higher than those in M1 cells. Furthermore, CUR prevented the increase in mortality, elevated body temperature, slowed growth, nervous system excitation, brain tissue congestion, vascular cuffing, and other symptoms of PRV-induced encephalitis in vivo. Thus, this study demonstrated that CUR protected against PRV-induced viral encephalitis by switching the phenotype of BV2 cells, thereby protecting neurons from inflammatory injury, and this effect was mediated by improving mitochondrial function and the AMPK/NF-κB p65-energy metabolism-related pathway.


Asunto(s)
Curcumina , Encefalitis Viral , Encefalitis , Herpesvirus Suido 1 , Seudorrabia , Animales , Curcumina/efectos adversos , Curcumina/metabolismo , Proteínas Quinasas Activadas por AMP/metabolismo , Proteínas Quinasas Activadas por AMP/farmacología , Microglía/metabolismo , Encefalitis/inducido químicamente , Encefalitis/metabolismo , Encefalitis/veterinaria , Fenotipo , Encefalitis Viral/metabolismo , Encefalitis Viral/veterinaria
8.
Heliyon ; 9(2): e13268, 2023 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-36747569

RESUMEN

Background: Vesicouterine fistula (VUF) is a rare complication after cesarean section. It is challenging to diagnose VUF correctly. Case presentation: A 34-year-old woman complained of recurrent hematuria and urinary tract infection for more than 4 years after cesarean delivery, mostly during menstruation, without vaginal leakage and with a normal menstrual cycle. Conventional transabdominal ultrasound showed no abnormal findings in bilateral kidneys and ureters, bladder and uterus, and transvaginal ultrasound showed that the scar at the lower part of the anterior uterine wall was closely adhered to the posterior wall of the bladder. Considering that the patient had hematuria but no vaginal leakage, we assumed that the fistula was flowing unidirectionally from the uterine cavity to the bladder cavity. Therefore, we chose to inject SonoVue (ultrasound contrast agent) into the uterine cavity rather than into the bladder. After intrauterine injection of SonoVue, the ultrasound contrast agent was seen flowing from the uterine cavity into the bladder cavity through the fistula, showing a hyperechoic fistula between the posterior wall of the bladder and the uterine wall, confirming the diagnosis of VUF. The accuracy of this diagnosis was then further confirmed by both MRI and cystoscopy. Conclusions: Trans-intrauterine CEUS provides a new effective imaging method for the diagnosis of VUF, especially for patients with fistulas that flow unidirectionally from the uterine cavity.

9.
Womens Health Rep (New Rochelle) ; 3(1): 523-532, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35652002

RESUMEN

Aim: Ovarian serous surface papillary borderline tumor (OSSPBT) is very rare. Combined with clinical and pathological features, we aim to investigate the multimodal ultrasound features of OSSPBT. Patients and Methods: There were only 18 patients diagnosed with OSSPBT among the 142 patients who were diagnosed with borderline serous ovarian tumor by pathology from June 2008 to December 2020 in our hospital. Their clinical data, conventional ultrasound, two-dimensional contrast-enhanced ultrasound (2D-CEUS), three-dimensional contrast-enhanced ultrasound (3D-CEUS) characteristics, pathology, and prognosis were retrospectively analyzed. Results: The 18 patients had no specific clinical symptoms. Multiple implantable nodules were found in 8 patients (44.4%), ascites in 13 patients (72.2%), and elevated carbohydrate antigen 125 (CA125) in 15 patients (83.3%). After excluding 2 misdiagnosed patients from 18 patients, 26 tumors in 16 patients (6 unilateral and 10 bilateral) were studied. Conventional ultrasound findings of OSSPBT showed that large solid masses around normal ovary without capsule, and numerous small dense anechoic areas were observed in the parenchyma of the lesion, with strong speckle echo ("blizzard" sign) of varying degrees. The 2D-CEUS and 3D-CEUS showed a normal ovary in the center surrounded by a radial blood supply of OSSPBT with thick and irregular branches. Histopathologically, the papillary fibrous stalk of OSSPBT had a large number of sand bodies and tortuous dilated microvessels. All patients had no recurrence after surgery, and two of them delivered successfully through assisted reproductive technology. Conclusion: OSSPBT has a good prognosis. Its conventional ultrasound is characterized by irregular solid masses surrounding normal ovaries and a large number of "blizzard" signs. It showed low enhancement of eccentricity with irregular radial branches centered on the ovary by CEUS.

10.
Front Vet Sci ; 8: 625609, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33996960

RESUMEN

Swine hepatitis E (swine HE) is a new type of zoonotic infectious disease caused by the swine hepatitis E virus (swine HEV). Open reading frame 3 (ORF3) is an important virulent protein of swine HEV, but its function still is mainly unclear. In this study, we generated adenoviruses ADV4-ORF3 and ADV4 negative control (ADV4-NC), which successfully mediated overexpression of enhanced green fluorescent protein (EGFP)-ORF3 and EGFP, respectively, in HepG2 cells. High-throughput sequencing was used to screen for differentially expressed long non-coding RNAs (lncRNAs) and messenger RNAs (mRNAs). The cis-target genes of lncRNAs were predicted, functional enrichment (Gene Ontology [GO] and Kyoto Encyclopedia of Genes and Genomes [KEGG]) was performed, and 12 lncRNAs with statistically significant different expressions (p ≤ 0.05 and q ≤ 1) were selected for further quantitative real-time reverse transcription (qRT-PCR) validation. In HepG2 cells, we identified 62 significantly differentially expressed genes (DEGs) (6,564 transcripts) and 319 lncRNAs (124 known lncRNAs and 195 novel lncRNAs) that were affected by ORF3, which were involved in systemic lupus erythematosus, Staphylococcus aureus infection, signaling pathways pluripotency regulation of stem cells, the peroxisome proliferator-activated receptor (PPAR) signaling pathway, and platinum drug resistance pathways. Cis-target gene prediction identified 45 lncRNAs corresponding to candidate mRNAs, among which eight were validated by qRT-PCR: LINC02476 (two transcripts), RAP2C-AS1, AC016526, AL139099, and ZNF337-AS1 (3 transcripts). Our results revealed that the lncRNA profile in host cells affected by ORF3, swine HEV ORF3, might affect the pentose and glucuronate interconversions and mediate the formation of obstructive jaundice by influencing bile secretion, which will help to determine the function of ORF3 and the infection mechanism and treatment of swine HE.

11.
Zhonghua Yi Xue Yi Chuan Xue Za Zhi ; 38(2): 108-111, 2021 Feb 10.
Artículo en Chino | MEDLINE | ID: mdl-33565059

RESUMEN

OBJECTIVE: To explore the genetic basis for three children with Menkes disease. METHODS: The patients were subjected to next-generation sequencing (NGS) to detect potential variants of the ATP7A gene. Suspected variants were verified by Sanger sequencing of their family members and 200 healthy individuals. Multiplex ligation-dependent probe amplification (MLPA) was also carried out to detect potential deletions in their family members and 20 healthy individuals. RESULTS: Variants of the ATP7A gene were detected in all of the three families, including a novel c.1465A>T nonsense variant in family 1, a novel c.3039_3043del frame-shifting variant in family 2, and deletion of exons 3 to 23 in family 3, which was reported previously. Based on the standards and guidelines of American College of Medical Genetics and Genomics, the c.1465A>T and c.3039_3043del variants of ATP7A gene were predicted to be likely pathogenic (PVS1+PM2). CONCLUSION: Variants of the ATP7A gene may underlay the Menkes disease in the three children. Above findings have facilitated clinical diagnosis and enriched the spectrum of genetic variants of Menkes disease.


Asunto(s)
ATPasas Transportadoras de Cobre/genética , Síndrome del Pelo Ensortijado , Estudios de Casos y Controles , Niño , Exones , Salud de la Familia , Secuenciación de Nucleótidos de Alto Rendimiento , Humanos , Síndrome del Pelo Ensortijado/genética , Mutación , Linaje
12.
Sci Rep ; 10(1): 22204, 2020 12 17.
Artículo en Inglés | MEDLINE | ID: mdl-33335121

RESUMEN

Pseudorabies virus (PRV) infection can elicit nervous system disorders. Curcumin has been reported to have neuroprotective effects. However, whether curcumin can protect neurons against PRV infection and the underlying mechanisms remain unclear. In the present study, for the first time, the protective effects of curcumin against PRV-induced oxidative stress, apoptosis, and mitochondrial dysfunction in rat hippocampal neurons and the brain-derived neurotrophic factor (BDNF)/tropomyosin-related kinase B (TrkB) pathway were investigated. Results indicated that PRV with a titer of 3.06 × 106 TCID50 (50% tissue culture infective dose) induced oxidative damage of hippocampal neurons 2 h post-infection and that 10 µM curcumin improved the viability of PRV-infected hippocampal neurons. Blocking the BDNF/TrkB pathway reversed the neuroprotective effects of curcumin, which were imparted by decreasing the PRV-induced upregulation of nitric oxide synthase expression, repressing the PRV-activated mitochondrial apoptotic pathway, and mitochondrial dysfunction. To conclude, curcumin exhibited a neuroprotective role against PRV infection by upregulating the BDNF/TrkB pathway. This study provides insight into the anti-PRV neuroprotective application of curcumin and the underlying mechanism in the prophylaxis and treatment of neurological disorders caused by PRV infection.


Asunto(s)
Antivirales/farmacología , Curcumina/farmacología , Herpesvirus Suido 1/efectos de los fármacos , Fármacos Neuroprotectores/farmacología , Células Piramidales/efectos de los fármacos , Células Piramidales/metabolismo , Células Piramidales/virología , Animales , Antioxidantes/farmacología , Apoptosis/efectos de los fármacos , Factor Neurotrófico Derivado del Encéfalo/metabolismo , Células Cultivadas , Potencial de la Membrana Mitocondrial/efectos de los fármacos , Mitocondrias/efectos de los fármacos , Mitocondrias/metabolismo , Neuroprotección/efectos de los fármacos , Óxido Nítrico/metabolismo , Oxidación-Reducción/efectos de los fármacos , Estrés Oxidativo/efectos de los fármacos , Ratas , Receptor trkB/metabolismo , Transducción de Señal/efectos de los fármacos , Superóxido Dismutasa/metabolismo
13.
Neurosci Lett ; 725: 134902, 2020 04 23.
Artículo en Inglés | MEDLINE | ID: mdl-32165261

RESUMEN

Oxidative stress is implicated in the initiation and progression of human and animal diseases. MicroRNA (MiR) has been reported to be involved in the body's regulation to oxidative stress. We investigated if miR-183 regulates lipopolysaccharide (LPS)-induced oxidative stress in the hippocampus of weaned piglets. LPS-treated piglets had lower expression of miR-183 and higher expression of the fibronectin(FN)1 gene in their hippocampus than control piglets. The expression profiles of miR-183 and the FN1 gene in primary cultured rat hippocampal neurons exposed to LPS were consistent with those in the hippocampus of LPS-treated piglets. The LPS-induced expression of FN1 was reversed in hippocampal neurons by transfection with an miR-183 mimic. A luciferase reporter assay further demonstrated that the FN1 gene is a direct target of miR-183. Taken together, our results demonstrated that miR-183 regulates LPS-induced oxidative stress at least in part by targeting FN1.


Asunto(s)
Fibronectinas/biosíntesis , Hipocampo/metabolismo , Lipopolisacáridos/toxicidad , MicroARNs/biosíntesis , Neuronas/metabolismo , Estrés Oxidativo/fisiología , Animales , Animales Recién Nacidos , Hipocampo/efectos de los fármacos , Masculino , Neuronas/efectos de los fármacos , Estrés Oxidativo/efectos de los fármacos , Ratas , Ratas Sprague-Dawley , Porcinos
14.
Eur J Obstet Gynecol Reprod Biol ; 246: 117-122, 2020 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-32007793

RESUMEN

OBJECTIVES: To investigate the diagnostic accuracy of contrast-enhanced ultrasound (CEUS) and to search for cut-offs in caesarean scar pregnancy (CSP) patients for making quantitative diagnoses. STUDY DESIGN: Thirty patients in the first trimester of pregnancy were enrolled in our study. They were suspected as being at risk of caesarean scar pregnancy by conventional ultrasound and insisted on abortions. Transvaginal ultrasonography (TVU) and CEUS were performed, and parameters were analysed on the time-intensity curve (TIC). Laparotomy, laparoscopy, hysteroscopy or curettage under the guidance of ultrasound were performed, and pathological finding of villi in the uterine scar is the gold standard for a diagnosis of CSP. The area under the receiver operating characteristic (ROC) curve (AUC) was used to estimate the probability of the correct prediction of CSP. RESULTS: CSP was diagnosed in 27 patients: pathological diagnosis revealed villus tissue in the scar. The peak intensity ratios of caesarean scar to myometrium have the overall best diagnostic performances (AUC: 0.877, 95 % CI: 0.74-1.00). Using a cut-off value of 1.08 for the peak intensity ratio of caesarean scar to myometrium, the diagnosis sensitivity, specificity, PPV and NPV for CSP were 77.8, 100, 100, and 81.8 %, respectively. CONCLUSIONS: CEUS offers good diagnostic performance, and the peak intensity ratio of caesarean scar to myometrium can be used as a quantitative index to diagnose CSP accurately.


Asunto(s)
Cesárea/efectos adversos , Cicatriz/diagnóstico por imagen , Miometrio/diagnóstico por imagen , Embarazo Ectópico/diagnóstico por imagen , Ultrasonografía Prenatal/métodos , Aborto Inducido , Adulto , Área Bajo la Curva , Cicatriz/etiología , Cicatriz/patología , Medios de Contraste , Femenino , Humanos , Valor Predictivo de las Pruebas , Embarazo , Primer Trimestre del Embarazo , Embarazo Ectópico/patología , Embarazo Ectópico/terapia , Curva ROC
15.
Chemosphere ; 226: 329-339, 2019 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-30939372

RESUMEN

Self-doped TiO2 nanotube arrays (DNTA) were prepared for the electrooxidation of resistant organics. The anatase TiO2 NTAs had an improved carrier density and conductivity from Ti3+ doping, and the oxygen-evolution potential remained at a high value of 2.48 V versus the standard hydrogen electrode, and thus, achieved a highly enhanced removal efficiency of phenol. The second anodization could stabilize Ti3+ and improve the performance by removing surface TiO2 particles. Improper preparation parameters (i.e., a short anodization time, a high calcination temperature and cathodization current density) harmed the electrooxidation activity. Although boron-doped diamond (BDD) anodes performed best in removing phenol, DNTA exhibited a higher mineralization of phenol than Pt/Ti and BDD at 120 min because intermediates were oxidized once they are produced with DNTA. Mechanism investigations using reagents such as tert-butanol, oxalic acid, terephthalic acid, and coumarin showed that the DNTA mineralization resulted mainly from surface-bound OH, and the DNTA produced more than twice the amount of OH compared with BDD. The free OH on the BDD electrode was more conducive to initial substrate oxidation, whereas the adsorbed OH on the DNTA electrode mineralized the organics in situ. The preferential removal of p-substituted phenols on DNTA was attributed mainly to their electromigration and the aromatic intermediates that are hydrophobic were beneficial to mineralization.


Asunto(s)
Técnicas Electroquímicas/métodos , Minerales/química , Nanotubos/química , Fenoles/química , Titanio/química , Electrodos , Oxidación-Reducción
16.
Exp Ther Med ; 15(5): 4386-4394, 2018 May.
Artículo en Inglés | MEDLINE | ID: mdl-29725379

RESUMEN

This report aims to evaluate the effect of atorvastatin (Ator) on left ventricular systolic function in myocardial infarction (MI) rats. Forty healthy adult Sprague-Dawley rats were randomly divided into four groups: Ator group, MI group, sham-operation group and normal group. The left anterior descending coronary arteries were ligated to establish the MI model; after modeling, the Ator group was treated with Ator for 4 consecutive weeks. The echocardiographic detection was performed; the left ventricular myocardial systolic peak velocities, strain and strain rates were analyzed using the 2D-STI technique. After 4 weeks, myocardial tissues were taken from all rats and received the pathological examination. Left ventricular end-diastolic diameter (LVEDD) and left ventricular end-systolic diameter (LVESD) in Ator group and MI group were increased after operation, but left ventricular ejection fraction (LVEF) and left ventricular fractional shortening (LVFS) were decreased; myocardial function were decreased significantly (p<0.05). After Ator treatment, myocardial function at the 3rd and 4th week after operation increased significantly (p<0.05). After Ator treatment, LVEDD and LVESD decreased while LVEF and LVFS increased in Ator group at the 3rd and 4th week after operation compared with MI group (p<0.05). At the 4th week after operation, LVEDD and LVESD in Ator group were decreased compared with those at the 1st and 2nd week after operation, but LVEF and LVFS were increased compared with those at the 1st, 2nd and 3rd week after operation (p<0.05). Pathological examination showed that necrosis and fibrosis of myocardial cells and inflammatory reaction were obvious in MI group. The inflammatory reaction of myocardial cells and myocardial fibrosis were lighter in Ator group. Ator can effectively improve the left ventricular systolic function in MI rats, which could be related to the reduction of response to inflammation and fibrosis.

17.
J Hazard Mater ; 356: 17-25, 2018 08 15.
Artículo en Inglés | MEDLINE | ID: mdl-29804010

RESUMEN

A novel composite bimetallic electrode, palladium-nickel/multi-walled carbon nanotubes/graphite felt (Pd-Ni/MWCNTs/GF), was synthesized for the electrocatalytic hydrodechlorination of 4-chlorophenol (4-CP). GF with a three-dimensional structure was used as the electrode substrate, and doped with MWCNTs, which can improve the GF conductivity and serve as a skeleton for metal loading. Ni and Pd were deposited on the electrode surface stepwise to obtain a well-aligned, highly active and stable Pd-Ni/MWCNTs/GF electrode. The Pd-Ni/MWCNTs/GF cathode showed a high reactivity for the electrocatalytic hydrodechlorination of 4-CP; up to 100% removal of 4-CP was achieved within 30 min, and followed pseudo-first-order kinetics with a rate constant of 0.162 min-1. Compared with other cathodes, the Pd-Ni/MWCNTs/GF electrode showed superior performance in 4-CP reduction. Excessive current will lower the reaction efficiency and current efficiency because of hydrogen evolution, and acidic solution conditions are more conducive to electrocatalytic reactions. Experiments confirmed that the Ni had a small amount of loss under acidic conditions but remained stable under neutral and alkaline conditions, whereas the loss of Pd for different pH values was constantly low. In cycle tests, the bimetallic electrode exhibits a better reactivity and stability than the single-metal Pd electrode in the long-term.

18.
J Agric Food Chem ; 66(13): 3417-3425, 2018 Apr 04.
Artículo en Inglés | MEDLINE | ID: mdl-29583004

RESUMEN

To study the effects of stigmasterol and ß-sitosterol on high-fat Western diet (HFWD)-induced nonalcoholic fatty liver disease (NAFLD), lipidomic analyses were conducted in liver samples collected after 33 weeks of the treatment. Principal component analysis showed these phytosterols were effective in protecting against HFWD-induced NAFLD. Orthogonal projections to latent structures-discriminate analysis (OPLS-DA) and S-plots showed that triacylglycerols (TGs), phosphatidylcholines, cholesteryl esters, diacylglycerols, and free fatty acids (FFAs) were the major lipid species contributing to these discriminations. The alleviation of NAFLD is mainly associated with decreases in hepatic cholesterol, TGs with polyunsaturated fatty acids, and alterations of free hepatic FFA. In conclusion, phytosterols, at a dose comparable to that suggested for humans by the FDA for the reduction of plasma cholesterol levels, are shown to protect against NAFLD in this long-term (33-week) study.


Asunto(s)
Metabolismo de los Lípidos/efectos de los fármacos , Enfermedad del Hígado Graso no Alcohólico/tratamiento farmacológico , Sitoesteroles/administración & dosificación , Estigmasterol/administración & dosificación , Animales , Colesterol/metabolismo , Dieta Alta en Grasa/efectos adversos , Modelos Animales de Enfermedad , Humanos , Hígado/efectos de los fármacos , Hígado/metabolismo , Masculino , Ratones , Ratones Endogámicos C57BL , Enfermedad del Hígado Graso no Alcohólico/metabolismo , Triglicéridos/metabolismo
19.
Int J Biol Macromol ; 107(Pt B): 2725-2729, 2018 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-29111270

RESUMEN

A series of 4- substituted sampangine derivatives (4-aminoalkylaminosampangine Ar-NH(CH2)nNR1R2) has been designed, synthesized, and tested for their ability to inhibit acetylcholinesterase (AChE), butyrylcholinesterase (BChE) and ß-myloid (Aß) aggregation. The synthetic compounds exhibited high AChE inhibitory activity and a significant in vitro inhibitory potency toward the self-induced Aß aggregation. While, treatment of SH-SY5Y cells overexpressing the Swedish mutant form of human ß-amyloid precursor protein (APPsw) with derivatives was associated with significant reduction of Aß42 secretion levels. Moreover, most of the synthetic compounds were predicted to be able to cross the blood-brain barrier (BBB) to reach their targets in the central nervous system (CNS) according to a parallel artificial membrane permeation assay for BBB. The result encourages us to study this class of compounds thoroughly and systematically.


Asunto(s)
Acetilcolinesterasa/metabolismo , Alcaloides/farmacología , Péptidos beta-Amiloides/antagonistas & inhibidores , Inhibidores de la Colinesterasa/farmacología , Agregado de Proteínas , Acetilcolinesterasa/química , Alcaloides/síntesis química , Alcaloides/química , Péptidos beta-Amiloides/química , Animales , Barrera Hematoencefálica/metabolismo , Butirilcolinesterasa/química , Línea Celular , Inhibidores de la Colinesterasa/química , Compuestos Heterocíclicos de 4 o más Anillos/síntesis química , Compuestos Heterocíclicos de 4 o más Anillos/química , Compuestos Heterocíclicos de 4 o más Anillos/farmacología , Caballos , Humanos , Naftiridinas , Permeabilidad
20.
Int J Cardiol ; 236: 466-472, 2017 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-28096044

RESUMEN

OBJECTIVES: To determine whether the combination of transesophageal echocardiography (TEE) and contrast echocardiography (CE) accurately diagnose suspected cardiac masses using large sample data. METHODS: Patients with cardiac masses undergoing surgical treatment were enrolled in this study. Routine transthoracic echocardiography (TTE) and TEE examinations were carried out, and CE examinations were carried out when needed. All patients' clinical data and imaging features were retrospectively reviewed. Surgery and histopathology served as the gold standard for diagnosing cardiac masses. RESULTS: A total of 252 consecutive patients were included in this study. Sixteen patients were lost to follow-up and were excluded from the study. The combinations of TEE and CE yielded the correct pathologic diagnosis in 225 of 230 patients (97.8%), while CT yielded the correct pathologic diagnosis in 122 of 141 patients (86.5%), p<0.01. TEE yielded the correct pathologic diagnosis in 219 of 226 patients (96.9%), and CE yielded the correct pathologic diagnosis in 45 of 48 patients (93.8%). TTE alone yielded the correct pathologic diagnosis in 163 of 236 patients (69.1%), p<0.001 for all. TEE imaging provided detailed and precise information regarding cardiovascular morphology, anatomy, hemodynamics and function, and CE provided information regarding tissue characteristics without subjecting patients to radiation exposure. CONCLUSIONS: The combination of TEE and CE is feasible for the detection of suspected cardiac masses, especially in diagnosing and differentiating between benign and malignant lesions.


Asunto(s)
Ecocardiografía Transesofágica/estadística & datos numéricos , Ecocardiografía/estadística & datos numéricos , Neoplasias Cardíacas/diagnóstico por imagen , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Preescolar , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Neoplasias Cardíacas/fisiopatología , Humanos , Lactante , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Adulto Joven
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